/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.sql;

import com.facebook.presto.metadata.Metadata;
import com.facebook.presto.spi.ConnectorSession;
import com.facebook.presto.spi.relation.ExpressionOptimizer;
import com.facebook.presto.spi.relation.ExpressionOptimizerProvider;
import com.facebook.presto.sql.relational.RowExpressionOptimizer;

import static java.util.Objects.requireNonNull;

public class InMemoryExpressionOptimizerProvider
        implements ExpressionOptimizerProvider
{
    private final Metadata metadata;

    public InMemoryExpressionOptimizerProvider(Metadata metadata)
    {
        this.metadata = requireNonNull(metadata, "metadata is null");
    }

    @Override
    public ExpressionOptimizer getExpressionOptimizer(ConnectorSession session)
    {
        return new RowExpressionOptimizer(metadata);
    }
}
